load15 property
Load15 is the same figure over fifteen. The three together are what separate a machine that is busy right now from one that has been busy all along — which is the question a dispatcher is really asking.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
num? load15;